With the recent death of Paul Allen at the age of 65, some may say that the era of Microsoft itself may be reaching some sort of terminus. The company that Allen and Bill Gates founded is, in some ways, more powerful than ever. But there has been a lingering feeling for the past few years that the firm may be losing its nimble touch. Programs like Windows 10 have been declared disasters in some circles, with many users expressing deep dissatisfaction with the product. At the same time, others have voiced deep concerns about the extent to which the company has been taken over at nearly all levels of upper management by high-level professionals from South Asia. Accusations of ethnic nepotism and even reverse racism have floated around the internet for a long time. Now, some of those accusations are coming to a head.

But these problems are hardly limited to Microsoft, says Shervin Pishevar. Apple, Google, Facebook and Amazon have all endured their fair share of controversies over the last few years, including some serious questions about all of those companies’ ability to continue innovating and providing the market with what it wants. In particular, both Google and Facebook have suffered serious and potentially highly damaging criticisms about their fundamental business models, particularly, the effectiveness of their advertising systems and to what extent genuine ROI on advertising spending is even really possible.

And none of this comes as any surprise to Shervin Pishevar. Shervin Pishevar is one of the most renowned venture capitalists in Silicon Valley. He has also been one of the most vocal critics of the Big Five tech monopolies for at least the last decade, warning repeatedly and loudly about the potential consequences to the U.S. economy and the San Francisco Bay Area, in particular, that will be the result of allowing iron-fist monopolies to continue to dominate such large segments of the tech markets.

Shervin Pishevar has stated unambiguously that allowing companies like Google and Facebook to control so much of the internet’s advertising system will cause innovative stasis that may eventually lead to the broad lack of competitiveness of the entire U.S. tech economy.